Application of 2,2′-dithiobis(4-methylthiazole) as sensing material for construction of Lu3+ PVC-membrane sensor

In this work a new Lu3+ PVC-membrane sensor based on 2,2′-dithiobis(4-methylthiazole) (TMT) has been fabricated. The sensor exhibits a Nernstian slope of 19.6 ± 0.4 mV decade−1 in the concentration range of 1.0 × 10−6-1.0 × 10−2 mol L−1 and a detection limit of 6.8 × 10−7 mol L−1. It could work well in the pH range of 2.7-9.6. The selectivity of the sensor against a lot of common alkaline, alkaline earth, transition, heavy metals and specially lanthanide ions was very good.